US AIR NATIONAL GUARD, US ARMY
John A O'Brien
July 16, 1943—December 1, 2021
LT COL
Life Timeline
78 years1943
Born
July 16, 1943
US AIR NATIONAL GUARD, US ARMY
Service Record
Vietnam War
Vietnam War
Conflict
LT COL
2021
Passed Away
December 1, 2021
Service Record
Verified fields from cemetery source data.
Branch
US AIR NATIONAL GUARD, US ARMY
Rank
LT COL
War / Conflict
Vietnam War
Sourced from official cemetery data; last updated May 30, 2026.Learn more